Concrete secondary screening equipment
By using a double-layer screen frame structure and an automatic cleaning component, the problem of screen clogging in secondary screening of concrete is solved, achieving a highly efficient screening effect.
Patent Information
- Application Number
- CN202423316546.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, during secondary screening of concrete, fine particles can easily clog the sieve mesh, leading to reduced screening efficiency.
It adopts a double-layer screen structure, with the screen fixed by a frame formed by side plates and baffles. The cleaning component slides between the screens to perform brush cleaning. The cleaning component includes components such as slide rail groove, connecting shaft, convex ring and wiping arm. Automatic cleaning is achieved by using a motor to drive the lead screw to rotate.
It enables automatic clearing of blockages during the screening process, avoiding screen clogging and improving screening efficiency and effectiveness.
Smart Images
Figure CN223747974U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a screening device technical field especially relates to a concrete secondary screening equipment. BACKGROUND
[0002] The sieve screen is the sheet structure that the small holes are uniformly arranged on the surface, and the small particles pass through the small holes and then the big particles are blocked on one side of the small holes to achieve the filtering effect.
[0003] The inventor found in the process of using the sieve screen to screen the concrete secondly that two sieve screens are stacked to screen in order to improve the screening effect of the concrete, and since the concrete is mainly composed of cement and gravel, some small gravel is stuck in the holes of the sieve screen, and the small particle gravel is blocked in the holes to reduce the screening efficiency of the sieve screen. UTILITY MODEL CONTENT
[0004] The utility model discloses a concrete secondary screening equipment that solves the shortcomings in the prior art.
[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a concrete secondary screening equipment, which comprises a screening assembly, the screening assembly is mainly composed of two sieve screens, the two sieve screens are arranged in parallel, the front and rear ends of the two sieve screens are fixedly connected with side plates respectively, the left and right sides of the two sieve screens are fixedly connected with baffle plates respectively, a cleaning assembly is arranged in the cavity between the two sieve screens, and the cleaning assembly slides along the direction of the sieve screen to clean the gaps in the sieve screen.
[0006] The above components achieve the following effects: the side plates and the baffle plates form a frame for installing the sieve screens, the two parallel sieve screens are fixed in the frame, the frame is supported by the stand columns, the concrete is poured from top to bottom on the sieve screens during screening, the double-layer sieve screens are used to screen the concrete gravel twice, and the cleaning assembly slides between the sieve screens to clean the sieve screens when the sieve screens are blocked.
[0007] Preferably, the surface of the side plate is fixedly connected with a stand column, and the stand column supports the side plate on the ground.
[0008] Preferably, the cleaning assembly comprises a sliding rail groove formed in the side plate, a connecting shaft is slidably connected in the sliding rail groove, the surface of the connecting shaft is fixedly connected with convex rings in a uniform manner, the convex rings are elliptical in structure, and adjacent two convex rings are fixedly connected with a wiping arm.
[0009] Preferably, two wiping arms are arranged, and the upper end of the wiping arm is fixedly connected with a scraping hair.
[0010] Preferably, the surface of the side plate is fixedly connected with a sliding rod, the surface of the sliding rod is slidingly connected with a sliding block, and the sliding block and the connecting shaft are rotationally connected.
[0011] Preferably, the surface of the side plate is rotationally connected with a screw rod, the surface of the screw rod is threadedly sleeved with a nut block, the nut block and the side plate are slidingly connected, the bottom end of the nut block is fixedly connected with a push arm, the upper end of the connecting shaft is fixedly connected with a snap ring which is open upward, and the push arm penetrates into the interior of the snap ring along the opening of the upper end of the snap ring.
[0012] The above-mentioned components achieve the effect that the screw rod is rotated, the screw rod drives the nut block to slide on the side plate, the push arm at the bottom end of the nut block slides along with the nut block, the push arm moves to push the open snap ring, the snap ring promotes the rotation of the connecting shaft between the sliding blocks, the elliptical convex ring on the surface of the connecting shaft is inclined to promote the two long ends of the ellipse to abut against the two screen meshes, one of the two wiping arms between the convex rings contacts the screen mesh, and as the push arm hooks the snap ring to pull the sliding block to slide on the surface of the sliding rod, the wiping arm on the connecting shaft also wipes the bottom of the screen mesh, thereby avoiding the blockage of the screen mesh, wherein the bottom of the convex ring can be further provided with a brush for wiping the lower screen mesh, different wiping arms can be controlled to wipe the screen mesh by controlling the forward and reverse rotation of the screw rod, and the screen meshes in the case are all hard meshes.
[0013] Preferably, the surface of the side plate is fixedly connected with a motor, and the output shaft of the motor is fixedly connected with the screw rod.
[0014] The above-mentioned components achieve the effect that the motor drives the rotation of the screw rod.
[0015] Compared with the prior art, the advantages and positive effects of the utility model lie in that,
[0016] In the utility model, the side plate and the baffle constitute a frame for mounting screen meshes, the two parallel screen meshes are fixed in the frame, the frame is supported by the stand column, and when screening, the concrete is only needed to be poured from top to bottom on the screen meshes, the double-layer screen meshes are used for twice screening of the concrete gravel, and when the screen meshes are blocked, the cleaning assembly is used for sliding between the screen meshes to wipe and clean the screen meshes. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A three-dimensional structure schematic diagram of the concrete twice screening equipment is provided in the utility model;
[0018] Figure 2 A partial structure schematic diagram of the cleaning assembly in the concrete twice screening equipment is provided in the utility model;
[0019] Figure 3 A cleaning assembly in the concrete twice screening equipment is provided in the utility model; Figure 2Figure 2 is a close-up view of A in Figure 1.
[0020] Legend: 1, post; 2, side plate; 3, screen; 4, cleaning assembly; 41, motor; 42, screw rod; 43, nut block; 44, sliding rod; 45, sliding block; 46, connecting shaft; 47, snap ring; 48, push arm; 49, convex ring; 410, wiping arm; 411, scraping hair; 5, baffle. DETAILED DESCRIPTION
[0021] Example 1, as Figures 1-3As shown, a concrete secondary screening device, including a screening assembly, the screening assembly mainly consists of two screen meshes 3, the two screen meshes 3 are arranged in parallel from top to bottom, the front and rear ends of the two screen meshes 3 are fixedly connected with side plates 2 respectively, the left and right sides of the two screen meshes 3 are fixedly connected with baffles 5 respectively, a cleaning assembly 4 is arranged in the cavity between the two screen meshes 3, the cleaning assembly 4 slides along the direction of the screen mesh 3 to clean the gap inside the screen mesh 3, a frame for installing the screen mesh 3 is formed by the side plate 2 and the baffle 5, the two parallel screen meshes 3 are fixed in the frame, the frame is supported by the stand 1, when screening, only need to pour the concrete from top to bottom on the screen mesh 3, the double-layer screen mesh 3 is used to screen the concrete gravel twice, when the screen mesh 3 is blocked, the cleaning assembly 4 slides between the screen meshes 3 to wipe and clean the screen mesh 3, the surface of the side plate 2 is fixedly connected with the stand 1, the stand 1 supports the side plate 2 on the ground, the cleaning assembly 4 includes a sliding rail groove opened on the side plate 2, a connecting shaft 46 is slidably connected in the sliding rail groove, a plurality of convex rings 49 are uniformly fixedly connected on the surface of the connecting shaft 46, the convex rings 49 are elliptical structures, a wiping arm 410 is fixedly connected between adjacent two convex rings 49, two wiping arms 410 are arranged, a scraping hair 411 is fixedly connected to the upper end of the wiping arm 410, a sliding rod 44 is fixedly connected to the surface of the side plate 2, a sliding block 45 is slidably connected to the surface of the sliding rod 44, the sliding block 45 and the connecting shaft 46 are rotatably connected, a lead screw 42 is rotatably connected to the surface of the side plate 2, a nut block 43 is threadedly sleeved on the surface of the lead screw 42, the nut block 43 and the side plate 2 are slidably connected, a push arm 48 is fixedly connected to the bottom end of the nut block 43, an upwardly open clasp ring 47 is fixedly connected to the upper end of the connecting shaft 46, the push arm 48 penetrates into the clasp ring 47 through the upper end opening of the clasp ring 47, by rotating the lead screw 42, the lead screw 42 drives the nut block 43 to slide on the side plate 2, the push arm 48 at the bottom end of the nut block 43 slides together with the nut block 43, the push arm 48 moves to push the open clasp ring 47, the clasp ring 47 drives the connecting shaft 46 to rotate between the sliding blocks 45, the elliptical convex rings 49 on the surface of the connecting shaft 46 are inclined to make the two long ends of the ellipse abut against the two screen meshes 3, one of the two wiping arms 410 between the convex rings 49 contacts the screen mesh 3, as the push arm 48 hooks the clasp ring 47 to pull the sliding block 45 to slide on the surface of the sliding rod 44, the wiping arm 410 on the connecting shaft 46 also wipes the bottom of the screen mesh 3, thereby avoiding the blockage of the screen mesh 3, the bottom of the convex ring 49 can also be provided with a brush for wiping the lower screen mesh 3, different wiping arms 410 can be controlled to wipe the screen mesh 3 by controlling the lead screw 42 to rotate forward and reverse, the screen meshes 3 in the case are all hard meshes, a motor 41 is fixedly connected to the surface of the side plate 2, the output shaft of the motor 41 is fixedly connected with the lead screw 42.
[0022] The working principle is that two parallel screen meshes 3 are fixed in a frame formed by the side plates 2 and the baffle 5, the frame is supported by the stand 1, and only concrete needs to be poured from top to bottom on the screen meshes 3 during screening, the double-layer screen meshes 3 are used for twice screening of the concrete gravel, when the screen meshes 3 are blocked, the cleaning assembly 4 is used to slide between the screen meshes 3 to brush and clean the screen meshes 3, the motor 41 drives the screw rod 42 to rotate, the screw rod 42 drives the nut block 43 to slide on the side plate 2, the push arm 48 at the bottom of the nut block 43 slides together with the nut block 43, the push arm 48 moves to push the open clasp ring 47, the clasp ring 47 drives the connecting shaft 46 to rotate between the sliding blocks 45, the oval convex ring 49 on the surface of the connecting shaft 46 is inclined to make the two long ends of the oval be inclined and abut between the two screen meshes 3, one of the two wiping arms 410 between the convex rings 49 contacts the screen meshes 3, with the push arm 48 hooking the clasp ring 47 to pull the sliding block 45 to slide on the surface of the slide rod 44, the wiping arm 410 on the connecting shaft 46 also brushes the bottom of the screen meshes 3, thereby avoiding the blockage of the screen meshes 3, and the bottom of the convex ring 49 can be provided with a brush for brushing the lower screen meshes 3, different wiping arms 410 can be controlled to brush the screen meshes 3 by controlling the forward and reverse rotation of the screw rod 42, and the screen meshes 3 are all hard meshes.
[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application, and in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, detachable connection or integral connection, it can be mechanical connection or electrical connection, it can be direct connection or indirect connection through an intermediate medium, and it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
Claims
1. A concrete re-screening apparatus comprising a screening assembly, characterised in that: The screening assembly is mainly composed of two screen meshes (3), which are arranged in parallel from top to bottom, and the front and rear ends of the two screen meshes (3) are fixedly connected with side plates (2), the left and right sides of the two screen meshes (3) are fixedly connected with baffle plates (5), and the cavity position between the two screen meshes (3) is provided with a cleaning assembly (4), which slides along the direction of the screen mesh (3) to clean the internal gap of the screen mesh (3).
2. The concrete re-screening apparatus of claim 1, wherein: The surface of the side plate (2) is fixedly connected with a stand column (1), and the stand column (1) supports the side plate (2) on the ground.
3. The concrete re-screening apparatus of claim 2, wherein: The cleaning assembly (4) comprises a sliding rail groove opened on the side plate (2), the inside of the sliding rail groove is slidably connected with a connecting shaft (46), the surface of the connecting shaft (46) is uniformly fixedly connected with a convex ring (49), the convex ring (49) is an elliptical structure, and adjacent two convex rings (49) are fixedly connected with a wiping arm (410).
4. The concrete re-screening apparatus of claim 3, wherein: Two wiping arms (410) are arranged, and the upper end of the wiping arm (410) is fixedly connected with a scraping hair (411).
5. The concrete re-screening apparatus of claim 4, wherein: The surface of the side plate (2) is fixedly connected with a sliding rod (44), the surface of the sliding rod (44) is slidably connected with a sliding block (45), and the sliding block (45) and the connecting shaft (46) are rotatably connected.
6. The concrete re-screening apparatus of claim 5, wherein: The surface of the side plate (2) is rotatably connected with a lead screw (42), the surface of the lead screw (42) is threadedly sleeved with a nut block (43), the nut block (43) and the side plate (2) are slidably connected, the bottom end of the nut block (43) is fixedly connected with a push arm (48), the upper end of the connecting shaft (46) is fixedly connected with an upwardly open clasp ring (47), and the push arm (48) penetrates into the inside of the clasp ring (47) along the upper end opening of the clasp ring (47).
7. The concrete re-screening apparatus of claim 6, wherein: The surface of the side plate (2) is fixedly connected with a motor (41), and the output shaft of the motor (41) and the lead screw (42) are fixedly connected.